scholarly journals Suppression on plant-parasitic nematodes using a soil fumigation strategy based on ammonium bicarbonate and its effects on the nematode community

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Lanxi Su ◽  
Yunze Ruan ◽  
Xiujuan Yang ◽  
Kang Wang ◽  
Rong Li ◽  
...  
2017 ◽  
Vol 2 (02) ◽  
pp. 210-215
Author(s):  
Shikha Ahalavat ◽  
Ashok Kumar Chaubey

A survey of agricultural fields near Yamuna in Faridabad, Haryana was conducted to study the diversity and community structure of the soil inhabiting nematodes. A total of 32 genera belonging to 7 orders and 22 families were recorded. In terms of abundance, order Tylenchida was most abundant while in terms of number of genera, order Rhabditida was most frequent. Out of 32 genera, 10 viz., Pratylenchus, Psilenchus, Helicotylenchus, Hemicriconemoides, Hoplolaimus, Meloidogyne, Rotylenchulus, Tylenchorhynchus, Hirschmanniella, Xiphinema belonged to plant-parasitic nematodes. Overall Meloidogyne was the most abundant among all the nematode genera.


1969 ◽  
Vol 47 (2) ◽  
pp. 76-90
Author(s):  
Alejandro Ayala ◽  
Jessé Román ◽  
Héctor Gandía

Pineapple production is an important source of income for Puerto Rico. The pineapple plant suffers attacks from several pests, of which plant-parasitic nematodes seem to be most troublesome. In order to evaluate and compare methods for the control of this pest several experiments were conducted in 1951, giving excellent results. More experimentation was deemed necessary to reduce the dosage of the nematocides used and to try a different method of application e.g. split dosages. An experiment was conducted in 1957 in an effort to solve this problem. Excellent results were obtained in relation to growth and appearance of plants and to yield of fruits per acre. EDB and D-D applied in split dosages, and MC-2 were significantly better in pineapple production than single applications of the first two nematocides and the control. Production was increased at least 10 times as compared with the control. These results are significant because they show once more that plant-parasitic nematodes are one of the most important factors in determining pineapple production. When these are controlled, better yields are obtained, even in soils which are not the best for this crop. Furthermore, the dosage can be reduced with the application of the nematocides at two intervals before planting, thus increasing the efficiency of the nematocide and decreasing the cost of application. Further experimentation is needed in order to answer several as yet unanswered questions. Experimentation continues and several tests are underway.


2007 ◽  
Vol 7 (2) ◽  
pp. 80-90
Author(s):  
I Gede Swibawa ◽  
Titik Nur Aeny

ABSTRACTCharacteristic of  Nematodes Community at PGS Golf Course Bandar Lampung. Golf course is a unique ecosystem where plant parasitic nematodes inhabit and become  important pest because they reduce the quality of the grass.  The pest problems on golf course can be indicated by its characteristics of nematode community.  Survey on nematodes community at PGS Golf Course Bandar Lampung was conducted from March to December 2004.  The objective was to study the characteristics of nematode community in the part of golf courses hole (green, collar, apron, and fairway).  Soil samples were taken from five holes each of it consists of green, collar, apron, and fairway, respectiveley.  Nematodes extraction was done in Laboratory of Arthropod Pest, Department of Plant Protection University of Lampung.   The result showed that at least 50 nematodes genera of 28 families inhabit PGS. The number of plant parasitic nematode genera was higher than the free-living one.  The characteristic of nematodes community on green and collar was different than on faiway. Nematode abundance and diversity on green and collar were higher than on fairway.  Based on abundance of nematode feeding group, maturity index of free-living nematodes (MI) and that of plant parasitic nematodes (PPI), green and collar part seemed to be more favorable to plant parasitic nematodes than free-living nematodes. The contrary happened for fairway.  Four most dominant genera of plant parasitic nematodes on PGS golf course were Helicotylenchus, Hoplolaimus, Criconemella, and Xiphinema.  


2020 ◽  
Vol 145 ◽  
pp. 14892-14901
Author(s):  
Sidy Diakhate ◽  
Florence Khady Ngom ◽  
Saïdou Nourou Sall

Objective: This study in the Senegal River Basin evaluated the effect of three types of compost, made from manure combined with straw, Calotropis procera (Sodom Apple) or Crotalaria juncea (Indian Hemp) , on plant-parasitic as well as free-living nematodes and on the growth of tomato plants. Methodology and results: This study was performed in a greenhouse where a Mongal tomato was grown during 3 months in a soil that had been abandoned due to infestation by nematodes. The treatments were composts of straw, Calotropis procera Crotalaria juncea and control without compost. The soils amended with compost had significantly higher nematode abundances than the unamended. The compost with Crotalaria juncea gave the highest abundance. The soils with compost also had a much lower proportion of plant-parasitic nematodes than the control soil and much higher proportion of bacterivorous nematodes. The height of the plants was positively correlated with the proportion of bacterivorous nematodes and negatively correlated with the proportion of plant-parasitic nematodes. Conclusions and application of the results: The influence on the soil nematode community of compost materials is associated more with their phenol content than the total organic carbon. The Calotropis procera and Crotalaria juncea encourage the growth of the bacterivorous nematode community, which plays an important role in maintaining soil fertility, and the growth of omnivorous and predatory nematodes while limiting the growth of the plant-parasitic nematode community. The results suggested that the compost with Crotalaria juncea seems to be worthwhile pursuing as it maintained the equilibrium between nematode feeding guilds while suppressing plant-parasitic nematodes. Keywords: Compost, Crotalaria, Calotropis, Straw, Nematode, sandy soil.


Nematology ◽  
2010 ◽  
Vol 12 (5) ◽  
pp. 681-692 ◽  
Author(s):  
Marek Renčo ◽  
Nicola Sasanelli ◽  
Trifone D'Addabbo ◽  
Ingrid Papajová

Abstract Five composts (C1: fresh olive pomace, straw, chicken manure, urea; C2: fresh olive pomace, lettuce residues, cow manure, straw, sawdust; C3: sewage sludge, municipal green residues; C4: grass, leaves, tree branches, soil; C5: by-product from penicillin production (mycelium), straw and sawdust) were tested in a pot experiment to investigate their short-term effect on the nematode community of a grassland soil. Composts were mixed with soil at the rates of 10, 25, 50 and 100 g (kg soil)–1 and barley was sown in each potting mixture after a 2-month decomposition period. Nematodes were extracted from each pot 5 months after barley sowing, identified at genus level and grouped into bacterial, fungal and root fungal feeders, predators, omnivores and plant parasites. Bacterial feeders, predators and omnivores were favoured by amendments with composted penicillin substrate and partly by compost from olive pomace, whereas composts from green wastes and sewage sludge suppressed these trophic groups except for predators. All compost treatments suppressed fungal feeders as well as significantly reducing the density of plant-parasitic nematodes compared with non-amended soil. The highest suppressiveness on plant-parasitic nematodes was found for the composts from urban green residues, penicillin substrate and olive pomace plus cow manure. Suppressive effect was hypothesised to be related to ammoniacal nitrogen content of the composts. Composts from fungal mycelium or olive pomace seem to be the most suitable for application in nematode management strategies due to their low impact on beneficial trophic groups.


EDIS ◽  
2017 ◽  
Vol 2017 (2) ◽  
pp. 8
Author(s):  
Zane Grabau

This 8-page fact sheet written by Zane J. Grabau and published in January 2017 by the UF Department of Entomology and Nematology explains how to diagnose and manage nematode problems in cotton production.­http://edis.ifas.ufl.edu/ng015


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